/* =============================================================================
   Arpit J Soni · Portfolio · "Mulberry"
   Centered editorial single column: warm cream, espresso ink, one
   plum-rose gradient accent. Display: Lora · Body: Instrument Sans
   ============================================================================= */

:root {
  --bg:       #FAF7F1;
  --bg-2:     #F2EEE4;
  --surface:  #FFFDF8;
  --ink:      #26221C;
  --muted:    #6B6357;
  --faint:    #9B9484;
  --line:     rgba(38, 34, 28, 0.12);
  --line-2:   rgba(38, 34, 28, 0.22);
  --accent:     #8E3B5E;
  --accent-deep:#6E2C49;
  --accent-2:   #C4688A;
  --accent-tint: rgba(142, 59, 94, 0.08);
  --grad:     linear-gradient(105deg, var(--accent) 10%, var(--accent-2) 90%);

  --sans:  'Instrument Sans', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --serif: 'Lora', Georgia, 'Times New Roman', serif;
  --mono:  'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --maxw: 700px;
  --pad: clamp(1.25rem, 5vw, 2rem);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: clamp(1rem, 0.6vw + 0.9rem, 1.12rem);
  line-height: 1.8;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: var(--surface); }

a { color: inherit; text-decoration: none; }
em { font-style: italic; }

/* --------------------------- scroll progress ------------------------------ */
.scrollbar { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 9997; background: transparent; }
.scrollbar span { display: block; height: 100%; width: 0; background: var(--grad); }

/* --------------------------------- nav ------------------------------------ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background .4s var(--ease), border-color .4s;
  border-bottom: 1px solid transparent;
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 1.3rem var(--pad);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  transition: padding .4s var(--ease);
}
.nav.scrolled {
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(140%) blur(14px); -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav.scrolled .nav-inner { padding-top: .9rem; padding-bottom: .9rem; }
.wordmark { font-family: var(--serif); font-weight: 600; font-size: 1.1rem; letter-spacing: .01em; }
.nav-right { display: flex; align-items: center; gap: 2rem; }
.nav-links { display: flex; gap: 2rem; }
.nav-links a {
  font-family: var(--mono); font-size: .76rem; letter-spacing: .06em; color: var(--muted);
  position: relative; padding: .2rem 0; transition: color .3s;
}
.nav-links a::after {
  content: ''; position: absolute; left: 0; bottom: -2px; height: 1px; width: 0; background: var(--accent);
  transition: width .35s var(--ease-out);
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta {
  font-family: var(--mono); font-size: .76rem; letter-spacing: .05em; color: var(--ink);
  border: 1px solid var(--line-2); border-radius: 100px; padding: .5rem 1rem;
  display: inline-flex; align-items: center; gap: .5rem; background: var(--surface);
  transition: border-color .3s, color .3s;
}
.nav-cta:hover { border-color: var(--accent); color: var(--accent-deep); }
.nav-burger { display: none; background: none; border: 0; flex-direction: column; gap: 5px; padding: .4rem 0; }
.nav-burger span { width: 24px; height: 1.5px; background: var(--ink); transition: transform .3s, opacity .3s; }

/* --------------------------------- hero ----------------------------------- */
.hero {
  position: relative;
  padding: 9.5rem var(--pad) 5rem;
  background:
    radial-gradient(640px 300px at 78% -4%, rgba(196, 104, 138, 0.10), transparent 65%),
    radial-gradient(520px 260px at 8% 2%, rgba(142, 59, 94, 0.06), transparent 60%);
}
.hero-inner { max-width: var(--maxw); margin: 0 auto; }
.hero-avatar {
  width: 104px; height: 104px; border-radius: 50%; object-fit: cover; display: block;
  border: 1px solid var(--line); box-shadow: 0 18px 45px -20px rgba(38, 34, 28, 0.35);
  margin-bottom: 2rem;
}
.eyebrow {
  font-family: var(--mono); font-size: .78rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 1.6rem;
}
.eyebrow .dot { color: var(--faint); margin: 0 .35rem; }
.hero-name {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(2.9rem, 9vw, 5.2rem); line-height: 1.02; letter-spacing: -0.02em;
  margin-bottom: 1.6rem;
}
.hero-name .line { display: block; overflow: hidden; }
.hero-name .line > span { display: block; }
.hero-name em {
  font-style: italic; font-weight: 500;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-role { font-family: var(--serif); font-size: 1.15rem; color: var(--muted); margin-bottom: 1.6rem; }
.hero-lead {
  max-width: 42ch; font-size: clamp(1.05rem, 1.3vw, 1.25rem); line-height: 1.75; color: var(--muted);
  margin-bottom: 2.6rem;
}
.hero-lead a, .about-copy a { color: var(--accent-deep); border-bottom: 1px solid rgba(142, 59, 94, 0.35); transition: border-color .3s, color .3s; }
.hero-lead a:hover, .about-copy a:hover { color: var(--accent); border-color: var(--accent); }
.hero-meta { display: flex; gap: 1rem; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: .6rem; font-family: var(--mono); font-size: .84rem;
  letter-spacing: .03em; padding: .9rem 1.5rem; border-radius: 100px; border: 1px solid var(--line-2);
  transition: transform .3s var(--ease), background .3s, color .3s, border-color .3s;
}
.btn .arrow { transition: transform .3s var(--ease); }
.btn-primary { background: var(--grad); color: #FFF9F0; border-color: transparent; font-weight: 500; }
.btn-primary:hover { filter: brightness(0.93); }
.btn-primary:hover .arrow { transform: translateX(5px); }
.btn-ghost { background: var(--surface); }
.btn-ghost:hover { border-color: var(--ink); }

/* ------------------------------- sections --------------------------------- */
.section { max-width: var(--maxw); margin: 0 auto; padding: clamp(3.5rem, 9vh, 6.5rem) var(--pad); }
.section-head { display: flex; align-items: baseline; gap: 1rem; margin-bottom: 2.6rem; }
.index { font-family: var(--serif); font-style: italic; font-size: 1.1rem; color: var(--accent); }
.index-label { font-family: var(--mono); font-size: .74rem; letter-spacing: .24em; text-transform: uppercase; color: var(--muted); }
.index-label::before { content: ''; display: inline-block; width: 34px; height: 1px; background: var(--line-2); vertical-align: middle; margin-right: 1rem; }
.section-title, h2.section-title { font-family: var(--serif); font-weight: 600; font-size: clamp(1.8rem, 4.5vw, 2.6rem); line-height: 1.12; letter-spacing: -0.015em; margin-bottom: 2.4rem; }

/* -------------------------------- about ----------------------------------- */
.about-copy h2 { font-family: var(--serif); font-weight: 600; font-size: clamp(1.6rem, 3.4vw, 2.2rem); line-height: 1.2; letter-spacing: -0.015em; margin-bottom: 1.6rem; }
.about-copy h2 em { color: var(--accent); font-style: italic; }
.about-copy p { color: var(--muted); margin-bottom: 1.2rem; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.6rem 1.2rem; align-items: start; margin-top: 2.4rem; padding-top: 2rem; border-top: 1px solid var(--line); }
.stat { display: flex; flex-direction: column; }
.stat-num { font-family: var(--serif); font-size: clamp(1.7rem, 3.5vw, 2.3rem); font-weight: 600; line-height: 1; height: 1em; display: flex; align-items: flex-end; font-variant-numeric: tabular-nums; margin-bottom: .6rem; }
.stat-num .plus { color: var(--accent); }
.stat-label { font-family: var(--mono); font-size: .66rem; letter-spacing: .07em; color: var(--faint); text-transform: uppercase; line-height: 1.5; }

/* ------------------------------ experience -------------------------------- */
.timeline { list-style: none; border-top: 1px solid var(--line); }
.tl-item {
  display: flex; align-items: center; gap: 1.2rem; padding: 1.4rem 0; border-bottom: 1px solid var(--line);
  position: relative; transition: padding-left .4s var(--ease);
}
.tl-item::before { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, var(--accent-tint), transparent); opacity: 0; transition: opacity .4s; z-index: -1; }
.tl-item:hover { padding-left: 1rem; }
.tl-item:hover::before { opacity: 1; }
.tl-dot { width: 8px; height: 8px; border-radius: 50%; border: 1px solid var(--accent); flex: none; transition: background .3s, box-shadow .3s; }
.tl-item:hover .tl-dot { background: var(--accent); box-shadow: 0 0 0 4px var(--accent-tint); }
.tl-body { flex: 1; display: flex; align-items: baseline; gap: .9rem; flex-wrap: wrap; }
.tl-body h3 { font-family: var(--serif); font-weight: 600; font-size: clamp(1.25rem, 3.4vw, 1.8rem); letter-spacing: -0.015em; line-height: 1.15; }
.muted-inline { color: var(--faint); font-size: .6em; font-weight: 400; }
.tl-tag { font-family: var(--mono); font-size: .7rem; letter-spacing: .05em; color: var(--muted); }
.tl-arrow { font-family: var(--serif); color: var(--accent); opacity: 0; transform: translateX(-8px); transition: opacity .4s var(--ease), transform .4s var(--ease); }
.tl-item:hover .tl-arrow { opacity: 1; transform: translateX(0); }
.tl-note { margin-top: 1.6rem; color: var(--faint); }
.tl-note .mono, .mono { font-family: var(--mono); font-size: .8rem; }
.tl-note a { color: var(--accent-deep); border-bottom: 1px solid rgba(142, 59, 94, 0.35); transition: border-color .3s, color .3s; }
.tl-note a:hover { color: var(--accent); border-color: var(--accent); }

/* -------------------------------- stack ----------------------------------- */
.stack-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.2rem 1.8rem; }
.stack-col h4 { font-family: var(--mono); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin-bottom: 1rem; padding-bottom: .65rem; border-bottom: 1px solid var(--line); }
.stack-col ul { list-style: none; display: flex; flex-direction: column; gap: .5rem; }
.stack-col a {
  position: relative; color: var(--muted); font-size: .98rem; width: fit-content;
  transition: color .3s, transform .3s var(--ease);
}
.stack-col a::after { content: ''; position: absolute; left: 0; bottom: 0; height: 1px; width: 0; background: var(--accent); transition: width .35s var(--ease-out); }
.stack-col a:hover { color: var(--ink); transform: translateX(5px); }
.stack-col a:hover::after { width: 100%; }

/* ------------------------------- contact ---------------------------------- */
.contact { text-align: center; }
.contact-title { font-family: var(--serif); font-weight: 600; font-size: clamp(2rem, 7vw, 3.8rem); line-height: 1.1; letter-spacing: -0.02em; margin-bottom: 2.4rem; }
.contact-title em { font-style: italic; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.contact-email-wrap { margin-bottom: 2.4rem; }
.contact-email {
  -webkit-appearance: none; appearance: none;
  display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--serif); font-style: normal; font-weight: 500; font-size: clamp(1.15rem, 3vw, 1.6rem);
  color: var(--ink); background: transparent; border: 0; border-radius: 0;
  border-bottom: 1px solid var(--line-2); box-shadow: none;
  padding: 0 .1rem .3rem; cursor: pointer; transition: color .3s, border-color .3s;
}
.contact-email:focus-visible { outline: 2px solid var(--accent); outline-offset: 6px; }
.contact-email:hover { color: var(--accent-deep); border-color: var(--accent); }
.email-arrow { font-style: normal; font-size: .62em; color: var(--accent); transition: transform .3s var(--ease); }
.contact-email:hover .email-arrow { transform: translateX(4px); }
.email-note { display: block; margin-top: 1rem; min-height: 1.2em; font-family: var(--mono); font-size: .74rem; letter-spacing: .04em; color: var(--faint); }
.contact-links { display: flex; justify-content: center; flex-wrap: wrap; gap: .8rem 2.2rem; }
.contact-links a { font-family: var(--mono); font-size: .84rem; letter-spacing: .04em; color: var(--muted); display: inline-flex; align-items: center; gap: .4rem; transition: color .3s; }
.contact-links a .arrow { color: var(--accent); transition: transform .3s var(--ease); display: inline-block; }
.contact-links a:hover { color: var(--ink); }
.contact-links a:hover .arrow { transform: translate(3px, -3px); }

/* -------------------------------- footer ---------------------------------- */
.footer {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  max-width: var(--maxw); margin: 0 auto; padding: 2.4rem var(--pad); border-top: 1px solid var(--line);
  font-family: var(--mono); font-size: .76rem; color: var(--faint);
}
.footer span:first-child { font-family: var(--serif); font-size: 1rem; color: var(--ink); }
.footer a { color: var(--muted); transition: color .3s; }
.footer a:hover { color: var(--accent-deep); }

/* -------------------------------- reveal ---------------------------------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .9s var(--ease-out), transform .9s var(--ease-out); }
.reveal.is-visible { opacity: 1; transform: none; }
.hero-name .line > span { transform: translateY(105%); transition: transform 1s var(--ease-out); }
.hero-name .line.is-visible > span, .reveal.is-visible .line > span { transform: none; }

/* ------------------------------ responsive -------------------------------- */
@media (max-width: 860px) {
  .nav-links, .nav-cta { display: none; }
  .nav-burger { display: flex; }
  .nav.open .nav-links {
    display: flex; position: fixed; inset: 0; flex-direction: column; align-items: center; justify-content: center;
    gap: 2.5rem; background: var(--bg); z-index: 90;
  }
  .nav.open .nav-links a { font-size: 1.4rem; font-family: var(--serif); color: var(--ink); }
  .nav.open .nav-burger span:first-child { transform: translateY(6.5px) rotate(45deg); }
  .nav.open .nav-burger span:last-child { transform: translateY(-6.5px) rotate(-45deg); }
}
@media (max-width: 560px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stack-grid { grid-template-columns: repeat(2, 1fr); }
  .tl-body { gap: .3rem; }
  .hero { padding-top: 8rem; }
  .btn { flex: 1; justify-content: center; }
  .hero-meta { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal, .hero-name .line > span { transition: none !important; opacity: 1 !important; transform: none !important; }
}